Christian Siriano Pet Collection: Designer Quality, Durable, and Comfy Item, for Pets, At an Everyday Low Price. Take your dog or cat's daily walks in style and comfort or just lounge around the house. The pull-over style design fits easily over your dog or cat's head for a snug and super comfortable fit. Made from comfortable polyester, this dress is perfect for all-day wear. Christian Siriano pet products have a variety of offerings and are designed to keep animals healthy, happy, and energized. Available in multiple sizes.